The practice of daylight saving time spans over a century of U.S. law. Here's who started it and why we observe the time ...

Arizona does not observe daylight saving time, remaining on Mountain Standard Time year-round and avoiding the annual shift ...

Daylight saving time is forcing a lot of people to move their clocks forward by an hour. But people who live here won't have ...

Here's what to know about when DST started and ends in 2025, why it exists and if President Donald Trump is actually ending it.

Two states – Hawaii and Arizona – don't observe daylight saving time, and many other states have considered legislation to ...

Arizona maintains its refusal to observe Daylight Saving Time due to considerations of intense heat and lifestyle.

You may have been groggy this morning thanks to our clocks “springing forward” an hour overnight. Unless, of course, you live in either of the two states that don’t observe daylight saving ...

A poster from 1918 encourages citizens to write a postcard and lobby Congress in support of daylight saving time. Credit: ...

Daylight Saving Time begins on Sunday, March 9 at 2 a.m. local time and ends on Sunday, Nov. 2. Currently, only Hawaii and parts of Arizona do not observe Daylight Saving Time. Mark your calendars ...

Daylight Saving Time ends on the first Sunday of November in the fall of each year. That's when states turn clocks back an hour. In the U.S., clocks will officially spring forward at 2 a.m. on Sunday, ...

Daylight saving time is almost here ... The exception will be Arizona, which, save for the Navajo Reservation, remains on daylight standard time all year long. That means they’ll keep the ...

Clocks had to "spring forward" one hour at 2 a.m. on Sunday, March 9, 2025, causing most people to lose an hour of sleep. We won't "fall back" to standard time again until Nov. 2, the first Sunday of ...